WP_HTML_Text_Replacement Core class used by the HTML tag processor as a data structure for replacing
WP_Meta_Query Core class used to implement meta queries for the Meta API.
WP_URL_Pattern_Prefixer Class for prefixing URL patterns.
WP_Block Class representing a parsed instance of a block.
PO POMO_Reader POMO_FileReader POMO_StringReader Provides file-like methods for manipulating a string instead
POMO_CachedFileReader Reads the contents of the file in the beginning.
POMO_CachedIntFileReader Reads the contents of the file in the beginning.
Translation_Entry Translation_Entry class encapsulates a translatable string.
Plural_Forms Translations Translations class.
Gettext_Translations Gettext_Translations class.
NOOP_Translations Provides the same interface as Translations, but doesn't do anything.
MO WP_Application_Passwords Class for displaying, modifying, and sanitizing application passwords.
WP_Locale Core class used to store translated data for a locale.
WP_Admin_Bar Core class used to implement the Toolbar API.
WP_Recovery_Mode_Key_Service Core class used to generate and validate keys used to enter Recovery Mode.
WP_Block_Parser Class WP_Block_Parser
WP_Embed API for easily embedding rich media such as videos and images into content.
WP_Theme_JSON_Resolver Class that abstracts the processing of the different data sources
WP_Error WordPress Error class.
WP_Customize_Section Customize Section class.
WP_Sitemaps Class WP_Sitemaps.
WP_Sitemaps_Posts Posts XML sitemap provider.
WP_Sitemaps_Users Users XML sitemap provider.
WP_Sitemaps_Taxonomies Taxonomies XML sitemap provider.
WP_Sitemaps_Stylesheet Stylesheet provider class.
WP_Sitemaps_Provider Class WP_Sitemaps_Provider.
WP_Sitemaps_Renderer Class WP_Sitemaps_Renderer
WP_Sitemaps_Index Class WP_Sitemaps_Index.
WP_Sitemaps_Registry Class WP_Sitemaps_Registry.
Tile Prop Dim_Prop Chan_Prop Features Box Parser PasswordHash Portable PHP password hashing framework.
WP_Customize_Control Customize Control class.
WP_List_Util List utility.
WP_User_Request WP_User_Request class.
WP_Ajax_Response Send XML response back to Ajax request.
Walker_Page Core walker class used to create an HTML list of pages.
WP_Theme_JSON Class that encapsulates the processing of structures that adhere to the theme.json spec.
WP_Dependencies Core base class extended to register items.
WP_Block_Bindings_Registry Core class used for interacting with block bindings sources.